CA2232215A1 - Method for introducing gas into a liquid - Google Patents

Method for introducing gas into a liquid

Info

Publication number
CA2232215A1
CA2232215A1 CA002232215A CA2232215A CA2232215A1 CA 2232215 A1 CA2232215 A1 CA 2232215A1 CA 002232215 A CA002232215 A CA 002232215A CA 2232215 A CA2232215 A CA 2232215A CA 2232215 A1 CA2232215 A1 CA 2232215A1
Authority
CA
Canada
Prior art keywords
gas
liquid
liquid surface
lance
gas stream
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002232215A
Other languages
French (fr)
Other versions
CA2232215C (en
Inventor
John Erling Anderson
Pravin Chandra Mathur
Ronald Joseph Selines
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Praxair Technology Inc
Original Assignee
Praxair Technology Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25229139&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2232215(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Praxair Technology Inc filed Critical Praxair Technology Inc
Publication of CA2232215A1 publication Critical patent/CA2232215A1/en
Application granted granted Critical
Publication of CA2232215C publication Critical patent/CA2232215C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
    • F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/234—Surface aerating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/234—Surface aerating
    • B01F23/2341—Surface aerating by cascading, spraying or projecting a liquid into a gaseous atmosphere
    • B01F23/23413—Surface aerating by cascading, spraying or projecting a liquid into a gaseous atmosphere using nozzles for projecting the liquid into the gas atmosphere
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
    • B01F25/21—Jet mixers, i.e. mixers using high-speed fluid streams with submerged injectors, e.g. nozzles, for injecting high-pressure jets into a large volume or into mixing chambers
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/32—Blowing from above
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4606—Lances or injectors
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52—Manufacture of steel in electric furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/072—Treatment with gases

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Nozzles (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Surgical Instruments (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

A method for introducing gas into a liquid wherein a gas stream is ejected from a lance spaced above the liquid surface and directed from the lance onto the liquid surface. The gas retains substantially all its original jet axis velocity when it contacts the liquid surface, and substantially all of the gas penetrates the liquid surface and is introduced into the liquid.
Preferably the gas stream is surrounded by a flame envelope running from the lance to the liquid surface, which shields the gas from ambient gas entrainment.
The gas stream preferably forms a gas cavity within the liquid having a diameter substantially the same as the diameter of the gas stream as it is ejected from the lance.
CA002232215A 1997-03-18 1998-03-16 Method for introducing gas into a liquid Expired - Lifetime CA2232215C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/819,810 1997-03-18
US08/819,810 US5814125A (en) 1997-03-18 1997-03-18 Method for introducing gas into a liquid

Publications (2)

Publication Number Publication Date
CA2232215A1 true CA2232215A1 (en) 1998-09-18
CA2232215C CA2232215C (en) 2003-07-08

Family

ID=25229139

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002232215A Expired - Lifetime CA2232215C (en) 1997-03-18 1998-03-16 Method for introducing gas into a liquid

Country Status (16)

Country Link
US (1) US5814125A (en)
EP (1) EP0866138B1 (en)
JP (1) JP3309073B2 (en)
KR (1) KR100368517B1 (en)
CN (1) CN1140761C (en)
AR (1) AR012076A1 (en)
AU (1) AU749671B2 (en)
BR (1) BR9800914A (en)
CA (1) CA2232215C (en)
DE (1) DE69802983T2 (en)
ES (1) ES2143968T3 (en)
ID (1) ID20066A (en)
MY (1) MY119920A (en)
PL (1) PL325310A1 (en)
RU (1) RU2208749C2 (en)
TW (1) TW470776B (en)

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6176894B1 (en) 1998-06-17 2001-01-23 Praxair Technology, Inc. Supersonic coherent gas jet for providing gas into a liquid
US6123542A (en) 1998-11-03 2000-09-26 American Air Liquide Self-cooled oxygen-fuel burner for use in high-temperature and high-particulate furnaces
US6342086B1 (en) * 1999-02-16 2002-01-29 Process Technology International, Inc. Method and apparatus for improved EAF steelmaking
FR2793263A1 (en) * 1999-05-07 2000-11-10 Air Liquide ELECTRIC ARC FURNACE FOR THE PRODUCTION OF STEEL AND METHOD FOR IMPLEMENTING SAME
DE19935010A1 (en) * 1999-07-26 2001-02-01 Linde Gas Ag Method and device for impregnating liquids with gases
US6306890B1 (en) * 1999-08-30 2001-10-23 Vanderbilt University Esters derived from indolealkanols and novel amides derived from indolealkylamides that are selective COX-2 inhibitors
US6142764A (en) * 1999-09-02 2000-11-07 Praxair Technology, Inc. Method for changing the length of a coherent jet
US6261338B1 (en) * 1999-10-12 2001-07-17 Praxair Technology, Inc. Gas and powder delivery system and method of use
US6139310A (en) * 1999-11-16 2000-10-31 Praxair Technology, Inc. System for producing a single coherent jet
US6241510B1 (en) 2000-02-02 2001-06-05 Praxair Technology, Inc. System for providing proximate turbulent and coherent gas jets
US6334976B1 (en) * 2000-08-03 2002-01-01 Praxair Technology, Inc. Fluid cooled coherent jet lance
US6254379B1 (en) * 2000-09-27 2001-07-03 Praxair Technology, Inc. Reagent delivery system
US6400747B1 (en) 2001-05-18 2002-06-04 Praxair Technology, Inc. Quadrilateral assembly for coherent jet lancing and post combustion in an electric arc furnace
US6432163B1 (en) * 2001-06-22 2002-08-13 Praxair Technology, Inc. Metal refining method using differing refining oxygen sequence
US20100151041A1 (en) * 2001-07-18 2010-06-17 Eckert C Edward Hypersaturated gas in liquid
US20060030900A1 (en) * 2001-07-18 2006-02-09 Eckert C E Two-phase oxygenated solution and method of use
US6450799B1 (en) 2001-12-04 2002-09-17 Praxair Technology, Inc. Coherent jet system using liquid fuel flame shroud
DE10201108A1 (en) 2002-01-15 2003-07-24 Sms Demag Ag Pyrometric metallurgy high-speed oxygen injection process for electric arc furnace involves pulse emission of oxygen-rich gas at supersonic speed
BE1015533A5 (en) * 2002-05-24 2005-05-03 Praxair Technology Inc Establishing method for coherent gas jet in gas lancing, involves combusting fuel and oxidant passed out from first and second sets of ports of ring to produce flame envelope around gas jets
US6604937B1 (en) 2002-05-24 2003-08-12 Praxair Technology, Inc. Coherent jet system with single ring flame envelope
US6773484B2 (en) * 2002-06-26 2004-08-10 Praxair Technology, Inc. Extensionless coherent jet system with aligned flame envelope ports
DE10257422A1 (en) * 2002-12-09 2004-07-08 Specialty Minerals Michigan Inc., Bingham Farms Method for positioning a measuring device that emits and receives optical radiation, for measuring wear on the lining of a container
US6875398B2 (en) * 2003-01-15 2005-04-05 Praxair Technology, Inc. Coherent jet system with outwardly angled flame envelope ports
US20040178545A1 (en) * 2003-03-14 2004-09-16 Cates Larry E. System for optically analyzing a molten metal bath
US20050145071A1 (en) * 2003-03-14 2005-07-07 Cates Larry E. System for optically analyzing a molten metal bath
US6932854B2 (en) * 2004-01-23 2005-08-23 Praxair Technology, Inc. Method for producing low carbon steel
WO2005079431A2 (en) * 2004-02-16 2005-09-01 Measurement Technology Laboratories Corporation Particulate filter and method of use
DE602005015575D1 (en) * 2004-05-14 2009-09-03 Linde Inc FINE OF MELT LIQUID METAL
US7438848B2 (en) * 2004-06-30 2008-10-21 The Boc Group, Inc. Metallurgical lance
ITMI20050241A1 (en) * 2005-02-18 2006-08-19 Techint Spa MULTIFUNCTIONAL INJECTOR AND ITS COMBUSTION PROCEDURE FOR METALLURGICAL TREATMENT IN AN ELECTRIC ARC FURNACE
US7297180B2 (en) * 2005-07-13 2007-11-20 Praxair Technology, Inc. Method for operating a vacuum vessel with a coherent jet
US20070175298A1 (en) * 2006-02-02 2007-08-02 Adrian Deneys Method for refining non-ferrous metal
US20080264209A1 (en) * 2006-02-02 2008-10-30 Adrian Deneys Method and system for injecting gas into a copper refining process
US7452401B2 (en) * 2006-06-28 2008-11-18 Praxair Technology, Inc. Oxygen injection method
WO2008076901A1 (en) * 2006-12-15 2008-06-26 Praxair Technology, Inc. Injection method for inert gas
US8142711B2 (en) * 2009-04-02 2012-03-27 Nu-Core, Inc. Forged copper burner enclosure
US8377372B2 (en) * 2009-11-30 2013-02-19 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Dynamic lances utilizing fluidic techniques
US20110127701A1 (en) * 2009-11-30 2011-06-02 Grant Michael G K Dynamic control of lance utilizing co-flow fluidic techniques
US8323558B2 (en) * 2009-11-30 2012-12-04 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Dynamic control of lance utilizing counterflow fluidic techniques
DE102010064357A1 (en) 2010-12-29 2012-07-05 Sms Siemag Ag Process for the pyrometallurgical treatment of metals, molten metals and / or slags
EP2878011B1 (en) * 2012-07-26 2018-05-30 Cool Technology Solutions, Inc. Heat exchanging apparatus and method for transferring heat
JP6551375B2 (en) * 2016-12-07 2019-07-31 トヨタ自動車株式会社 Hydrogen gas burner structure and hydrogen gas burner apparatus equipped with the same
US11313554B2 (en) 2016-12-19 2022-04-26 Praxair Technology, Inc. Fluidic burner with heat stability
US11098894B2 (en) 2018-07-11 2021-08-24 Praxair Technology, Inc. Multifunctional fluidic burner

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Publication number Priority date Publication date Assignee Title
US3216714A (en) * 1963-02-04 1965-11-09 Bot Brassert Oxygen Technik Ag Heating and blowing device for metallurgical purposes
FR1424029A (en) * 1964-01-06 1966-01-07 Union Carbide Corp Method and apparatus for introducing a stream of process gas into a bath of molten metal
US3889933A (en) * 1974-02-28 1975-06-17 Int Nickel Canada Metallurgical lance
US4210442A (en) * 1979-02-07 1980-07-01 Union Carbide Corporation Argon in the basic oxygen process to control slopping
US4373949A (en) * 1979-02-07 1983-02-15 Union Carbide Corporation Method for increasing vessel lining life for basic oxygen furnaces
US4426224A (en) * 1981-12-25 1984-01-17 Sumitomo Kinzoku Kogyo Kabushiki Gaisha Lance for powder top-blow refining and process for decarburizing and refining steel by using the lance
US4599107A (en) * 1985-05-20 1986-07-08 Union Carbide Corporation Method for controlling secondary top-blown oxygen in subsurface pneumatic steel refining
US5302325A (en) * 1990-09-25 1994-04-12 Praxair Technology, Inc. In-line dispersion of gas in liquid
US5569180A (en) * 1991-02-14 1996-10-29 Wayne State University Method for delivering a gas-supersaturated fluid to a gas-depleted site and use thereof

Also Published As

Publication number Publication date
DE69802983D1 (en) 2002-01-31
JPH10263384A (en) 1998-10-06
BR9800914A (en) 1999-09-21
MY119920A (en) 2005-08-30
ES2143968T3 (en) 2002-08-01
ES2143968T1 (en) 2000-06-01
AU749671B2 (en) 2002-07-04
EP0866138B1 (en) 2001-12-19
PL325310A1 (en) 1998-09-28
KR100368517B1 (en) 2003-04-21
TW470776B (en) 2002-01-01
KR19980080282A (en) 1998-11-25
CA2232215C (en) 2003-07-08
AR012076A1 (en) 2000-09-27
DE69802983T2 (en) 2002-07-18
ID20066A (en) 1998-09-24
US5814125A (en) 1998-09-29
CN1140761C (en) 2004-03-03
AU5842598A (en) 1998-09-24
RU2208749C2 (en) 2003-07-20
JP3309073B2 (en) 2002-07-29
CN1196473A (en) 1998-10-21
EP0866138A1 (en) 1998-09-23

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20180316